Ahn Aeri has been in love with the same guy for the past 5 years. She can't seem to forget about him no matter what she does. Everytime she forgets about him, he would randomly pop up in her brain randomly and take her by surprise. The thing is... she has no idea where that guy is right now. He had suddenly disappeared on her without a word. The last time she had seen him was in her last years of high school. She was now in college. One day, she notices her friend watching a music video, but what caught her eye wasn't the music. It was the guy in the music video who looked awfully similar to the guy she loved. When Aeri tries to chase after the guy, she finds out that after all her efforts... it's not him. But what if she ends up falling for this new guy instead?